Distinguish whether the research questions below are good or bad example and can be investigated. Type in GOOD if it is and BAD if it is not a good example.

1. Which effective education strategies prevent drug abuse in teens?

2. How do government regulations prevent corporations from polluting the water?

3. Does owning a pet improve quality of life for older people?

4. How do artificial sweeteners affect people?

5. Does medication help alleviate attention deficit hyperactivity disorder (ADHD) symptoms? And do kids need more exercise? ​